The OS5100 from Teledyne Microwave Solutions is a Voltage Controlled Oscillator with Frequency 4300 to 5100 MHz, Power 1.259 mW, Tuning Sensitivity 85 MHz/V, Tuning Voltage 0 to 15 V, Pulling 10 MHz. Tags: Module with Connectors. More details for OS5100 can be seen below.